Shingle



Sept. 6 1927. 1,641,858

J. A. M CARTHY SHINGLE Filed March 1, 1926 WITNESSES INVENTOR I ATTORNEYS -ner that waste is substantially eliminated.

Patented Sept. 6, 1927.

UNITED STATES PATENT orrlcs.

JOHN AUGUSTUS McCAB'IE IY, OF ST. JOSEPH, MIS SOURI.

SHINGLE.

Application filed March. 1, 1926. Serial No. 91,519.

This invention relates to shingles of the lock type. An object of the present invention is the provision of a shingle having locking means integrally formed in the shingle and which cooperate with the complementary portions of overlapping shingles for rigidly securing the projecting free ends of the shingles against movement.

A further object of the invention 15 the provision of a shingle .having 1ntegrally formed, locking means, with the shingles being cut from a single roll in such a manfine no material departure from the salient features of the invention as expressed in the appended claims.

In the drawings: Figure is a view in perspective of a section of roofing showing shingles constructed in accordance with the principles of my invention. Figure -2 is a transverse vertical section taken along the line 2-2 of Figure 1.

Figure 3 is a vertical section taken along the line 3-3 of Fi ure 1.

Figure'4 is a pan view of a shingle adapted for roofing as shownin Figure 1.

Figure 5' is a plan view of a modified form of the shingle shown in Figure 4.

Figure 6 is another modified form of the shingle.

Figure 7 is a fragmentary view showing a modified form of a shingle constructed inaccordance with the principles of my inven-.

tion.

Referring more particularly to the drawings, 10. designates a section of roof to which the shingles generally designated by the numeral 11 are applied. Each shingle is formed of rectangular sheets of roofing material, the shingles being designed to eliminate substantially all waste; The shingles are out transversely of a roll of roofing material so that the material which is cut out to form the spaces between the tabs 12 of the shingle 11 is employed to form the tabs of other shingles. It will be noted by this method of cutting terial is eliminated.

The ta-bs1'2 are, in this form,-in the shape of a truncated cone, with the side that all waste of the ma- I ti l walls 13 inclined and having arcuately shaped cuts 14 extending inwardly from the side walls and from their upper ends. These cuts terminate upon opposite sides of the center line runnin longitudinally of the tabs. Onopposite sides of the upper or wider end of each tab is provided a cut 14 located at substantially a right angle to the lower edge 15 of the shingle 11, said lower edge connecting the upper adjacent ends of This edge isalso located a pair of tabs. I at the upper end of the cut out portion disposed between a pair of tabs.-

The cuts 14 form in the'tab a pair of anchor-shaped locking tongues 16. the tongues being included within the confines of the tabs. The cuts 14 form locking tongues 17 which cooperate with the tongues 16 for locking the ends of the shingles against movement.

When the shingles are applied to a root as shown in. Figure 1 they are placed in overlapping relation in such a manner that the edge 15 of each shingle will aline with the lower edge 18 of each tab which is disposed in superimposed relation. The tongues 17 of a shingle located in a lower row of shingles will enga e over the tongue 16 of the shingles in a hlgher row along the root. In a completed roof the shingles will appear as disposed in rows in alternate relation, with the shingles in one row disposed in staggered relation with the shingles in another row. It will be appreciated that along the edge of the roof it will be necessary to cut off all those portions of the shingles which project beyond such edges.

In the two forms shown in Figures 5 and 6 modifications are disclosed which, however, contain the identical locking means of the shingles shown in Figures 1 and 4 but the contours of the shingles are such that a different design will be had when applied to the roof.

In' the shingle 20 shown in Figure 5 the tabs 21 are substantially rectangular in shape and are provided with arcuately shaped cuts 22 along the edges of the tabs and vertical cuts 23 extending inwardly from the lower edge 24 of the bodyfof the shingle. In this form of shingle tongues coordinated with the tongues 27, with the tongues being received beneath the tongues 23 whereby the shingle will be locked by the complementary tongues in the same manner as shown in Figure 1. The part 26 above the dotted line of each tab forms anchorshaped tongues anchoring the tabs to the body of the shingle in cooperation to the tongues 28.

Referring more particularly to Figure 6, this modified form has substantially rectangularly shaped tabs 30 with an arouately shaped portion 31 removed along the lower free end of the tab while the opposite 4 side edges of the tabs are out along an are as shown at 32 to provide a rounded portion adjacent the upper side edges of the\ tabs. The tabs are provided with arcuately shaped cuts 33 which form a continuation of the curvature of the side edges 32 of the tabs. The shingle 34 is likewise provided with vertical cuts 35 extending upwardly from the curved side edges 32 and into the body of the shingle to provide tongues 36. These tongues are adapted to engage over tongues 37 formed by the cuts 33 of a superimposed shingle so that both side edges of the tabs 30 arelocked against movement in such a manner.

In forming the shingle 3a a slight waste is shown in shaded lines at 38 and which provides a portion for forming the curved side edges 32. The portion which forms the cut 31 at the free end of the shingle also forms a slight waste but such portion need not be removed since it merely effects the general design after the applications of the shingles.

Referring to Figure 7 it will be seen that the cuts 22 are formed along straight lines instead of the curved cuts shown in Figures 4, 5 and 6, and it will be appreciated that these straight cuts may be employed with any of the various forms of shingle illustrated. 'It will be noted that the side edges 40 of the tab or tongue 27 have been sheared off so that the side edges appear to be offset from the side edge 41 of the tongue proper thereby reducing the lower end of the tab.

What I claim is:

A shingle strip composed of a body portion and tabs depending from the body portion, each of the tabs being provided with arcuately-shaped slots extending inwardly fronrthe side edges of each tab anddividing the tab symmetrically and groups of co-operative slots located between each pair of tabs and extending upwardly into the body portion to receive the submerged lower portion of the tabs of an adjacent shingle strip, said arcuate-shaped slots changing the design of the tabs from a hexagon to a round tab with a square base and forming alternate designs in the same course and alternate designs in alternate courses, the sides of the lower parts of the tabs forming anchor-shaped locking tongues when assembled in courses. i

JOHN AUGUSTUS MCCARTHY. 

